Home / Science / Signs of Atmosphere Detected on Potentially Habitable Exoplanet
Signs of Atmosphere Detected on Potentially Habitable Exoplanet
31 Jul
Summary
- LHS 1140b, a super-Earth 49 light-years away, shows signs of an atmosphere.
- The planet orbits within its star's habitable zone, allowing for liquid water.
- Scientists are optimistic about finding potential signatures of extraterrestrial life.
Scientists have detected compelling indications that LHS 1140b, an exoplanet situated 49 light-years from Earth, may possess an atmosphere. This rocky super-Earth, approximately five times the mass of our planet, orbits within the habitable zone of its star.
The planet's position in the "Goldilocks zone" suggests its surface temperature could sustain liquid water, a crucial element for life as we know it. Researchers believe LHS 1140b is predominantly rocky, with a composition potentially similar to Earth's.
Observations using the Magellan Clay telescope in Chile in September 2024 detected helium escaping from LHS 1140b, suggesting the presence of an atmosphere. While this initial finding is significant, follow-up observations in 2025 did not detect helium, presenting a mystery that researchers are actively investigating.
Future observations, including those by the James Webb Space Telescope and the Hubble Space Telescope, are planned to further scrutinize LHS 1140b. Confirming an atmosphere on this rocky planet would be a landmark discovery, bolstering prospects for finding habitable worlds beyond our solar system.
